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00001 /* 00002 Copyright (C) 2008 by Frank Richter 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_UTIL_ROOTEDHIERCACHE_H__ 00020 #define __CS_UTIL_ROOTEDHIERCACHE_H__ 00021 00022 #include "csextern.h" 00023 #include "iutil/cache.h" 00024 #include "iutil/hiercache.h" 00025 #include "csutil/csstring.h" 00026 #include "csutil/scf_implementation.h" 00027 00028 struct iObjectRegistry; 00029 struct iVFS; 00030 00031 namespace CS 00032 { 00033 namespace Utility 00034 { 00042 class CS_CRYSTALSPACE_EXPORT RootedHierarchicalCache : 00043 public scfImplementation1<RootedHierarchicalCache, iHierarchicalCache> 00044 { 00045 private: 00046 csRef<iHierarchicalCache> wrappedCache; 00047 csString rootdir; 00048 00049 csString AdjustPath (const char* org); 00050 public: 00056 RootedHierarchicalCache (iHierarchicalCache* cache, const char* root) 00057 : scfImplementationType (this), wrappedCache (cache), rootdir (root) {} 00058 00059 virtual ~RootedHierarchicalCache () {} 00060 00063 virtual bool CacheData (const void* data, size_t size, 00064 const char* path) 00065 { return wrappedCache->CacheData (data, size, AdjustPath (path)); } 00066 virtual csPtr<iDataBuffer> ReadCache (const char* path) 00067 { return wrappedCache->ReadCache (AdjustPath (path)); } 00068 virtual bool ClearCache (const char* path) 00069 { return wrappedCache->ClearCache (AdjustPath (path)); } 00070 virtual void Flush () 00071 { wrappedCache->Flush (); } 00072 virtual csPtr<iHierarchicalCache> GetRootedCache (const char* base); 00073 virtual csPtr<iStringArray> GetSubItems (const char* path) 00074 { return wrappedCache->GetSubItems (AdjustPath (path)); } 00075 virtual iHierarchicalCache* GetTopCache() 00076 { return wrappedCache->GetTopCache(); } 00077 virtual bool IsCacheWriteable() const 00078 { return wrappedCache->IsCacheWriteable(); } 00080 }; 00081 } // namespace Utility 00082 } // namespace CS 00083 00084 #endif // __CS_UTIL_ROOTEDHIERCACHE_H__ 00085